Internal-combustion engine.



"m Patented May 22, 1917.

2 SHEETS-SHEET l.

E. C. LONG.

INTERNAL COMBUSTION ENGINE.

APPLICATION man APR.1 1,226,678

INTERNAL-COMBUSTION ENGINE.

Specification of Letters Patent.

Patented May 22, 1917..

f l Application filed April 1, 1913. Serial No. 758,168.

To all whom t may concern Be it known that l, ELMER C. LONG, a citizenof the United States of America, residing at Hannibal, in the county ofMarion and State of Missouri, have invented certain new and usefulImprovements in Internal- Combustion Engines, of which the following isa specification.

This invention relates more especially to internal combustion engineshav-ing valves of the reciprocatory type. The primary object of thisinvention is to provide means whereby the valve pockets which are formedin the engine adjacent the valves are reduced to a minimum,I therebyproviding for greater explosive energy on the driving pist0n.

Another object is to provide a sleeve valve of such design that thepacking' rings thereon will give ecient service.

A :further object is to provide an eXplosive engine with improved valveswhereby the exploding and compressing action during the operation of anengine are not accentuated on the valves, thereby providing perfectlybalanced valves.

Other and further objects will appear in the specification, and bespecifically pointed out in the appended claims, reference being had tothe accompanying drawings exemplifying the invention, and in which,

Figure 1 is a vertical section ot an internal combustion engineconstructed in accordance with the principles of the present invention.

Fig. 2 is a horizontal section taken on the line ll-ll', Fig. 1.

Fig. 8v is a vertical section similar to Fig. 1, but showing theposition of the valves in diderent relation to each other.

Fig. 4 is a vertical section on the line 1V -FV, Fig. 8.

Referring to the drawings: the engine cylinders 1 are preferablyconstructed in pairs. Each of said cylinders has an inlet valve chamber2 and an exhaust valve chamber 3 on opposite sides thereof, saidcylinders and valve chambers being surrounded by a water jacket l.

Located between a pair of the inlet valve chambers 2 is an inlet opening5 which coinmunicates with a recess 6. Communicating with the inletopening 5 is an intake connection 7 which leads from the mixturesupply'. Reciprocably mounted in said intake valve chambers 2 are intakesleeve valves 8,

integral with said valves adjacent the bottorn of said openings 1l arehorizontal partitions 12. Formed in said intake valves 8, adjacent theirupper ends, are openings 18, said openings being much shorter in lengththan the openings 11. During the reciprocation of said valve, theopenings 13 are adapted to communicate with recesses 14. Each recess 14is formed around one of said valves 8, said recesses beingin`communication with ports 15, which provide for admission into thecylinders 1.

Mounted on top of the inlet valve chambers 2 are depending cylinderheads 16 which depend downwardly into said intake valves 8 formingannular chambers 17. Formed adjacent the center of each of saiddepending cylinder heads are horizontal partitions 18, said partitionsforming chambers 19 adjacent the lower end of said cylinder heads.

' Mounted in said depending cylinder heads adjacent and below thehorizontal partitions 18 are packing rings 20. Mounted at the lower endof said cylinder heads are packing rings 21, said packing rings 20 and21 bearing outwardly against the inside walls of said intake sleevevalves 8. Located in said sleeve valves 8, adjacent and above theopenings 13 are packing rings 22. Located above the openings 11 oit saidintake valves 8 are packing rings 23, said packing rings 22 and 23bearing against the walls of the intake valve chambers 2.

Located in each cylinder 1, and oppositely disposed from each inlet port15 are outlet ports 24, which ports 211 provide for the exhausting ofeach cylinder 1 into the recesses 25. Reciprocably mounted in theexhaust valve chamber 3 are exhaust sleeve valves 26, said valves havingopenings 27 formed therein adjacent the upper end thereof. Said openingsare of the same size as the openings 13 in the intake valve 8, and areadapted to communicate with the recesses 25.

Formed in the lower end of said exhaust valve are openings 28, whichopenings are of the same size as the openings 11 in the intake valve 8,and are adapted to be 1n communication' at all times'with the recesslos.

..29 which communicates with the discharge .opening 30 and the exhaustpipe 31.

- adjacent the lower ends of the openin s 28,'

.Formed in each of said exhaust valves 26,

.inder heads engagingthe inside walls of the exhaust valves 26, formingannular chambers 36. Formed integral with said cylinder yheads 35 arehorizontal partitions 37 which form chambers 38 in the lower end of saidynal combustion engine construction,

packing rings 41 and 42 are adapted to engage the walls of the exhaustvalve chambers 3.

ln. the operation of this improved intershown in Fig. 1, the exhaustvalve 26 is in position for exhausting the burnt gases from the cylinder1, the piston 43 in said cylinder 1 being on the upward stroke. 'lheopenings 27 in said exhaust valve are in communication with the outletport 24 and recess 25. 'Alter the exhaust gases have passed through saidopenings 27, they will pass downwardly inside of said exhaust valye .26and will then pass out of the openings 23into the recess 29 through thedischarge opening 30 and into the exhaust pipe 31. ln the meantime,while said exhaust valve 26 is moving upwardly, communica tion can stillbe had with the exhaust pipe v31 through the openings 23, as saidopenings are adapted to have such a length that they are never out ofcommunication with said discharge pipe 3l. Furthermore, after theopenings 27 have passed upwardly heyond the outlet port 24, the exhaustvalve 2G closing said port, the exhaust gases that still remain insideof said exhaust valve will he forced out hy reason of the horizontalportion 32 of said valve traveling upwardly toward the chamber 33 ofsaid depending cylinder head 35. Furthermore, when the exhaust gaseslirst enter 'into said exhaust valve through the openings 27, saidchamber 33 will allow greater expansion area in said exhaust valve fromthe force el the exhaust gases.

l is shown in llig. 3, the port r15 in the respective valves.

masacre cylinder 1 has just been closed, said cylinder 1 having justreceived its charge of explosive mixture is about to be compressed. Asshown, the solid wall portions of the inlet valve 8 and exhaust valve 26are adjacent the ports- 15 and 24 so that the cornpression .that isabout to take place will bear against the youtside cylindrical walls ofsaidv intake and exhaust valve so that there really will be nolorcesupplied against the operation of said valves. yAgain, when theexplosion takes place, the effect of the explosion will not in any waybe detrimental to said valves. lt is to be noted that the recesses 14and 25 which afford communication from and to said intake and exhaustvalves, respectively, are of the minimum size so as to allow for theintaking and exhausting of said valves without any resistance. This willa'ord a much smaller waste of 'gaseous mixture than heretofore, as theexplosion of gases from which energy is derived to the piston 43 is thatwhich is directed solely on said piston.

lt is to be noted that by reason of the position which the packing rings22 and 23 of the intake valves 8, and packing rings 41 and 42 of theexhaust valves 26, assume during the reciprocation of said valves, the

v rings at no time pass any openings or ports, but are always bearingagainst the solid cylindrical walls of their respective valve chambers.This arrangement of packing rings will insure very efficient packing ofsaid valves, so that the escape of gases when 'under compression andexplosion is reduced to a minimum. To further assist the packing of saidvalves, it is to be noted that the depending cylinders 16 and 35 carrythe packing rings 20 and 21, and '39 and 40 which bear against theinside walls olii their lt is 'thought a valve of this construction, ofthe sleeve type, the walls thereof hearing against the cool valvechamloery walls, will have better valve cooling facilities. ln order tolubricate the upper portions of 'these improved valves, which upperportions reciprocate in their respective annular chainloers 17 and 35ypipes such as 44 communicate with the upper portions of said annularchambers and the crank case 45. lnasmuch the oil which will he containedin said crank chamber is splashed around, 'the air contained thereinwill be charged with l low valve located in said valve chamber, a

Aber.

2. In an internal combustion engine, the combination ofv a valvechamber, and a crank chamber, a reciprocably mounted hollow valvelocated in Said valve chamber, a depending cylinder head for said Valvechamber, a pocket formed in the depending end of said cylinder head,said cylinder head adapted to engage the interior of one end of saidvalve, an annular chamber formed between said depending cylinder headand said valve chamber, and a passageway leading from said crank chamberto said annular chamber, said pocket of said open at one end located insaid chamber, a v

cylinder head for said valve chamber, said cylinder head dependingdownwardly into the open end of said Valve, a chamber formed in saidcylinder head, said chamber being in communication with the open end ofsaid valve, an annular chamber formed betweensaid cylinder head and thewall of said valve, and a passageway leading from one end of said valvechamber adapted to form means of communication to the other end of saidvalve chamber.

ELMER c. LONG.

In the presence of- C. O. MAYES, W. K. ARNOLD.

